Rail-crossing structure



Aug. 19, 1930. J. H. ASSELIN RAIL CRQSSING STRUCTURE Filed Jan. 15 1950Sheets-Sheet 1 g z c] g I lllllllllllllllllllll IIIHHI X lllllll-:llllllll l un'mm IIIIUIIIIIIIIIII INVENTOR A TTORNEYS.

Aug. 19, 1930. J. H. AssELIN 1,773,251

RAIL CROSSING STRUCTURE Filed Jan. 15, 1950 2 Sheets-Swat 2 n I 1 I I kll ul l.)

h mw' aQ W79. wudgmvw INVENTOR.

ATTORNEYS. I

Patented Aug. 19, 1930 OFFIGE JAMES H. AssELIN, or sANrRANoI soo,CALIFORNIA RAIL-CROSSING STRUCTURE Application filed January 15, 1930.Serial No. 420,947.

This invention relates to railroad crossings and especiallyto crossingsof the rigid or cast type.-

There are two main types of rail crossings in general use, to-wit, thebuilt-up type and the rigid or cast type.

The built-up type has certain advantages such as presenting a rolledrail surface to the pounding and wear of the rolling stock passing overthe same but. it has certain disadvantages and they are the boltingtogether and fitting of numerous parts and lack of rigidity.

Cast crossings also have advantages such as great rigidity and strengthbut they require the use of high grade steels, such as manganese steel,etc., which gives consider able trouble during the casting operation dueto the enormous shrinkage which is encountered in cooling, thisshrinkage causing cracking and porous spots etc. which developweaknesses and breakage when the crossings are placed in operation.

The object of the present invention is to construct a crossing combiningthe advantages of both types; first, by employing a cast ing whichpermits the use of any commercial cast steel;'secondly, by presenting acontinuous rolled rail steel surface to the wheels of the rolling stock;and third, by providing a crossing which has greater rigidity andstrength than either the built-up or solid cast type now in use. p

The rail crossing is shown by way of illustration in the accompanyingdrawings, in F which .Fig. 1 is a plan view of a complete cross- Fig.Qis a perspective view of one of the in ec ng r s of he c ossingi dr vew showing the wearing block inserted and in Positi n, .1

Fig. 3 is a vertical cross section taken on ne fFia-2,

igsa p rsp t iew of of t clamping guard plates, said plate also funcn' na Wh el fl nge u d Q. Referring to the drawings in detail andparticularly Fig. 1, it will be noted that the crossing consists of four .arms generally indicated at 1, 2, 3 and 4. These arms intersecteach otherat the points indicated at A, B, Cand D and they are extendedbeyond the points of intersection as indicated at 1*, 2, 3 and 4* so asto permit the main line rails indicated at 5, 6, 7, and 8 to be boltedthereto.

Pockets are formed at the points of intersection indicated at A, B, Cand D and wearing blocks such as indicated at 9 are inserted in eachpocket. The surface of each block is provided with flange grooves suchas shown Figs. 1 and 3 and to permit insertion of aux iliary wedges suchas shown at 13 and 14.

Each arm of the casting is provided with a base plate 15 which extendsfrom end to end of the arms and beneath the intersecting pointsindicated at A, B, C and D, thus forming a rigid base for the severalconnected arms and the extensions thereof and at the same time forming abottom section for the pockets in which the wearing blocks are inserted.The wearing blocks, by the way, are heavy as they extend from the topsurface of the rails to the bottom thereof so as to be supported by thebase plates 15, their weight being so greatthat they might be termedanvil blocks. Spelter such as shown at 16 is poured around the blockswhen they are inserted so as to form a resilient cushion and to securethem rigidly when they are in position, the main securing means,however, being the wedges 12, 13and 14. Due to the considerable weightpresented by each wearing block, the poundingof the wheels when jumpingthe flange grooves is absorbed without transmiting mu hvibm i o th ast gIt y further be stated that these blocks are preferablymade of heattreated alloy steel, such as chromium steel, or the like, thuspresenting as rr a wh ca W ths e ro n i and wear of thewheelspassi-ngover the same. It should also be noted that each wearingblock is provided withfour lug-like projectio'ns such as shown at 9',9", 9 and 9 The main line rails indicated at 5, 6, 7 and 9 abut the lugs9 and 9 and the intermediate rolled such as shown at I", 2, 3" an 4 bymeans of bolts extending through the rails, the arms and the clampingplates as indicated at 18. Theintermediate rails 6, 6397 and 8 arebolted to the arms 1, 2, 3 and 4 as indicated at 1:9, and theyaresupported throughout their lengthby the base plates 15. The endsof themain line rails shown at 5, 6, 7 and 8 are also; supported b the baseplates 15, hence both the interme iate and main line rails are rigidlysupported and secured with relation to'the casting forming the crossing,thus eliminatingany working or play between the rail sections and thewearing blocks when the rollihgstock is passi over the same. Thecianfin' plates slro n at 1", 2 3 and 4" are pro T do with wheelflangeguides as shown at 20"Hhd the intermediate rails 5,6, 7* and fi'f'i iiay similarly provided with wheel flai jguides as shown at 21, thusinsuring a coh uous wheel "flange guide while the wheels of therollingstock are passing over the crossing. v

lThe casting forming the crossing may in this instance be cast fromractically any grade of commercial past stee thus reducing shrinkagetroubles and warping to the minimum." High grade and hard steel can beeliminated as the rolling stock does not come in?contact therewith atany point.v The in- 'seition and the rigid bolting of the intermed laterolled rail sections shown at5'f, 6, 7 and 8" is importantyfirst,because in unison with the wearing blocks and the main line rails theypresent iii-continuous steel surface to therwear and tear of the rollingstock passing over the same; and they furthermore, reinforce andstrengthen the arms 1, 2, 3 and 4 of the casting, thus eliminating alldanger even though one or more of the arms should crack. Age-n theintermediate rolled rail sections mansion as brace-members and to thatextent the rigidity of the crossing as a whelew" While certain featuresof the present invention are more' or less specifically described, "Iwish it understood that various may-be resented to within the scopetil-the appended "claims; Similarly, that the iiiasterialsand finishesof the several parts (1 may as the manufacturer p gep xg gy ggconditions or uses may assesses a es es W What I claim and desire tosecure by Letters Patent is' 1. A rail crossing comprising fourintegrally cast arms, said arms forming four points of intersection andbeing extended beyond the points of intersection, a plurality of pocketsformed in the casting, one at each point of intersection, a steelwearing block secured in each pocket, rails secured to the arms of thecasting at points intermediate the wearing blocks and abutting the same,and rails secured to the outer ends of the arms and also abutting thewearing blocks.

2. A rail crossing comprising four integrally castarms, said armsforming four points of intersection and being extended beyond the pointsof intersection, a plurality of pockets formed in the casting, one ateach point of intersection, a steel Wearing block secured in eachpocket, rails secured to the arms of the casting at points intermediatethe wearing blocks and abutting the same, and rails secured to the outerends of the arms and also abutting the wearing blocks, said rails andwearing blocks presenting a continuous steel surface for the wheels ofrolling stock passing over the crossing.

3. A rail crossing comprising four integrally cast arms, said armsforming four points of intersection and being extended beyond the pointsof intersection, a plurality of pockets formed in the casting, one ateach point of intersection, a. steel wearing block secured in eachpocket, rails secured to the arms of the casting at points intermediatethe wearing blocks and abutting the same, rails secured'to the outerends of the arms and also abutting the wearing blocks, and a base plateformed integral with each arm and with each other and extendingunderneath the Wearing blocks.

4. A rail crossing comprising four integrally cast arms, said armsforming four points of intersectionand being extended beyond the pointsof intersection, a pluralit of pockets formed in the casting, one ateach point of intersection, a steel wearing block secured in eachpocket, rails secured to the arms of the casting at points intermediatethe "wearing blocks and abutting the same, rails secured to the outerends of the arms and also abutting the wearing blocks, said rails andwearing blocks presenting a continuous steel surface for the wheels ofrolling stock passing over the crossing,and clampingplates cooperatingwith the outer ends of the arms to secure the last named rails to theouter ends of the arms. a

5. rail crossing comprising four integrally connected arms, said armsformin four points of intersection and being exten ed beyond the pointsof intersection, a base member forming a part of each arm and ex;tending fromend to end thereof, said base members being also integrallyconnected, a

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plurality of Wearing blocks secured to the arms and their base members,one block at each point of intersection, rails secured to the arms andsupported by the base members thereof at points intermediate the Wearingblocks and abutting the same, and rails secured to the outer ends of thearms and supported by the base sections thereof and also abutting theWearing blocks, said first and last named rails together with theWearing blocks forming a steel surface for the Wear and tear of rollingstock passing over the same, and the arms together with the base membersforming a support for said steel surface.

JAMES H. ASSELIN.

